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Unmanned vehicle for road acceleration loading test

An unmanned vehicle and accelerated loading technology, which is applied in the direction of applying repetitive force/pulsation force to test the strength of materials, measuring devices, instruments, etc., can solve the problems of car speed-up and speed-down adjustment that are not flexible enough to avoid cumulative deviation , flexible adjustment of speed reduction, and the effect of ensuring safety

Inactive Publication Date: 2020-12-29
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention proposes an unmanned vehicle for accelerated loading tests on road surfaces to solve the problem that the accelerated loading test devices for road surfaces in the prior art cannot perform long-distance accelerated loading tests in the field. The technical problem that the adjustment of speed up and speed down is not flexible enough

Method used

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  • Unmanned vehicle for road acceleration loading test
  • Unmanned vehicle for road acceleration loading test
  • Unmanned vehicle for road acceleration loading test

Examples

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Embodiment 1

[0042] The present invention provides an unmanned vehicle for road surface acceleration loading test, which is hereinafter referred to as unmanned vehicle in this embodiment, and the working principle of embodiment 1 is described in detail below:

[0043] Such as figure 1 As shown, the body of the unmanned vehicle includes a chassis and a cargo box.

[0044] During the test, the unmanned vehicle needs to achieve automatic acceleration, constant speed, deceleration until stop, reverse reciprocating operation, and automatic real-time correction of the driving direction. During the test, the driving speed of the vehicle is low (generally not greater than 25km / h), the driving state is fixed (preset by the program), and the driving environment is free of interference (no other vehicles, pedestrians), so compared with the conventional The unmanned vehicle used for road acceleration loading test only needs to be equipped with ranging and image acquisition sensors.

[0045] In this ...

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Abstract

The invention provides an unmanned vehicle for a road acceleration loading test. The unmanned vehicle comprises a vehicle body, a vehicle automatic control system and an execution mechanism, wherein the vehicle body comprises a chassis and a loading container; the vehicle automatic control system comprises a state sensing module and a motion decision module; the state sensing module is used for sensing the driving state and the surrounding environment of the unmanned vehicle; the motion decision module comprises a safety control system, a vehicle speed control system and a direction control system and is used for carrying out automatic control decision on the speed and the direction of the unmanned vehicle; and the execution mechanism comprises a braking system, an accelerator control system and a steering control system. The unmanned vehicle can solve the technical problems that a road acceleration loading test device cannot carry out a long-distance road acceleration loading test inthe field, and speed increase and speed reduction adjustment of a car in a test process is not flexible enough.

Description

technical field [0001] The invention relates to the technical field of road surface accelerated loading test, in particular to an unmanned vehicle for road surface accelerated loading test. Background technique [0002] With the rapid increase in the number of cars in my country in recent years, the load on the road surface is increasing. In this way, it is necessary to test the damage of the road surface and the performance of the road surface during the design and maintenance of the road. Evaluate. The pavement accelerated loading test can quickly simulate the damage of the actual traffic load to the pavement in a short period of time, detect the state of the pavement and test parameters, and analyze the damage mechanism within the life cycle of the road. Provide a basis for optimizing road performance indicators. [0003] In the prior art, the accelerated loading test equipment used in the accelerated loading test of the pavement usually uses ALF equipment or MMLS equipme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/18B60W10/06B60W10/20B60W30/12B60W40/02B60W40/105B60W40/107B60W60/00B60W50/00B60T7/12G01N3/32
CPCB60T7/12B60W10/06B60W10/18B60W10/20B60W30/12B60W40/02B60W40/105B60W40/107B60W2050/0043B60W2520/10B60W2520/105B60W2710/0605B60W2710/18B60W2710/20B60W60/001B60W2552/50G01N3/32G01N2203/0005
Inventor 贾学明徐峰刘中帅温辉波阎宗岭袁青海张瑶古瑶
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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